PT-2021-14330 · Phoenix Contact · Phoenix Contact Fl Switch Smcs

Anne Borcherding · Published 2021-06-25 · Updated 2021-07-02 · CVE-2021-21003

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions: Phoenix Contact FL SWITCH SMCS series products (affected versions not specified)

Description: The issue concerns fragmented TCP-Packets that may cause a Denial of Service of Web-, SNMP- and ICMP-Echo services in the affected products. The switching functionality of the device is not affected.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2021-21003

Affected Products

Phoenix Contact Fl Switch Smcs

References · 4

• https://osv.dev/vulnerability/CVE-2021-21003 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21003 · Security Note
• https://t.me/cvenotify/16964 · Telegram Post
• https://cert.vde.com/en-us/advisories/vde-2021-023 · Note